import java.util.Scanner;
 public class Example3_4{
  public static void main(String args[]){
   int number;
    System.out.println("输入正整数（回车确定）");
   Scanner reader = new Scanner(System.in);
    number = reader.nextInt();
    switch(number){
     case 9:
     case 131:
     case 12:System.out.println(number+"是三等奖");
       break;
     case 209:
     case 596:
     case 27:System.out.println(number+"是二等奖");
       break;
     case 875:
     case 3161:
     case 59:System.out.println(number+"是一等奖");
       break;
     default: System.out.println(number+"未中奖");
}
}
}


